<template>
  <div>
    <!--    面包屑区域-->
    <el-breadcrumb  separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>

<!--    卡片视图区域-->
    <el-card>
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input
              placeholder="请输入内容"
              v-model="queryInfo.query"
              clearable
              @clear="getGoodsList">
            <el-button
                slot="append"
                icon="el-icon-search"
                @click="handleCurrentChange(1)">
            </el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="goAddPage">添加商品</el-button>
        </el-col>
      </el-row>

<!--      table表格区域-->
      <el-table :data="goodsList" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="商品名称" prop="goods_name"></el-table-column>
        <el-table-column label="商品价格(元)" prop="goods_price" width="95px"></el-table-column>
        <el-table-column label="商品重量" prop="goods_weight" width="70px"></el-table-column>
        <el-table-column label="创建时间" prop="add_time" width="160px">
          <template v-slot="scope">{{scope.row.add_time | dateFormat}}</template>
        </el-table-column>
        <el-table-column label="操作" width="130px">
          <template v-slot="scope">
            <el-tooltip
                effect="dark"
                content="修改商品"
                placement="top"
                :enterable="false">
              <el-button
                  type="primary"
                  icon="el-icon-edit"
                  size="mini"
                  @click="goEditPage(scope.row.goods_id)">
              </el-button>
            </el-tooltip>
            <el-tooltip
                effect="dark"
                content="删除商品"
                placement="top"
                :enterable="false">
              <el-button
                  type="danger"
                  icon="el-icon-delete"
                  size="mini"
                  @click="removeById(scope.row.goods_id)">
              </el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>

<!--      分页区域-->
      <el-pagination
          @size-change="handleSizeChange"
          @current-change="handleCurrentChange"
          :current-page="queryInfo.pagenum"
          :page-sizes="[5, 10, 15, 20]"
          :page-size="queryInfo.pagesize"
          layout="total, sizes, prev, pager, next, jumper"
          :total="total"
          background>
      </el-pagination>
    </el-card>
  </div>
</template>

<script>
  export default {
    name: "List",
    data() {
      return {
        //查询参数对象
        queryInfo: {
          query: '',
          pagenum: 1,
          pagesize: 10
        },
        //商品列表
        goodsList: [],
        total: 0,
        //修改商品的验证规则对象
        addListRules: {
          goods_name: [{
            required: true,
            message: '请输入商品名称',
            trigger: 'blur',
          }],
          goods_price: [{
            required: true,
            message: '请输入商品价格',
            trigger: 'blur',
          }],
          goods_weight: [{
            required: true,
            message: '请输入商品重量',
            trigger: 'blur',
          }],
          goods_number: [{
            required: true,
            message: '请输入商品数量',
            trigger: 'blur',
          }]
        },
      }
    },
    created() {
      this.getGoodsList()
    },
    methods:{
      //根据分页获取对应的商品列表
      async getGoodsList() {
        const {data:res} = await this.$http.get('goods',{params:this.queryInfo})

        if(res.meta.status !== 200) {
          return this.$message.error('获取商品列表失败！')
        }
        this.goodsList = res.data.goods

        this.total = res.data.total
      },
      handleSizeChange(newSize) {
        this.queryInfo.pagesize = newSize
        this.getGoodsList()
      },
      handleCurrentChange(newPage) {
        this.queryInfo.pagenum = newPage
        this.getGoodsList()
      },
      //删除商品
      async removeById(id) {
        const confirmResult = await this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err => err)
        if (confirmResult !== 'confirm') {
          return  this.$message.info('已取消删除！')
        }

        const {data:res} = await this.$http.delete(`goods/${id}`)

        if(res.meta.status !== 200) {
          return this.$message.error('删除失败！')
        }
        this.$message.success('删除成功')
        this.getGoodsList()
      },
      goAddPage() {
        this.$router.push('/goods/add')
      },
      goEditPage(id) {
        this.$router.push('goods/edit/' + id)
      },
    }
  }
</script>

<style lang="less" scoped>

</style>